Safety harnesses and lanyards limit falls but do not eliminate them, and are not a substitute for effective fall protection measures like guardrails on working platforms. Users must do pre-use inspections of harnesses and lanyards to identify any issues like cuts, breaks, or damage that could compromise safety. Special attention should be paid to webbing, buckles, D-rings, snap hooks, and any areas subjected to abrasion, chemicals, or heat when inspecting for signs of wear or potential failure.